Members of the Rho family of small GTP-binding proteins (GTPases) are key signal transduction proteins that mediate signals initiated by growth factors, cytokines and cell adhesion proteins. Our knowledge about Rho GTPases has rapidly expanded over the past several years and Rho GTPases is the first book to provide a comprehensive overview of the regulation and functions of this important class of proteins.
This book includes several chapters dedicated to the review of various classes of proteins that control the localization and activation state of Rho GTPases. Additional chapters discuss the wide range of biological functions that are controlled by Rho GTPases, including the organization of the actin cytoskeleton, cell proliferation and cell motility.
Rho GTPases is essential reading for cell and molecular biologists, biochemists and geneticists. The critical roles of Rho family members in cancer and inflammatory diseases makes Rho GTPases also an invaluable guide for clinical investigators and pharmacologists.

Water scarcity affects hydrologic resources, systems connectivity, biodiversity, water quality, and river ecosystem functioning. It has direct impacts on economic sectors that use and depend on water, such as agriculture, tourism, industry, energy and transport. The Mediterranean Basin is one of the regions in the world most vulnerable to climate changes, as well as one of the most impacted by human water demand. This volume provides an in-depth view of the water quality and quantity implications of water scarcity. It highlights its possible causes and describes the effects in regions under Mediterranean climate. The topics covered include climate effects, water resources (use, storage and new sources), water quality (chemical and microbiological), and the effects on ecosystems suffering from water scarcity. This book is addressed to scientists and students, but also to managers involved in the necessary decision making process to face future periods of drought.

Anthropogenic influences to the earth's system, including the atmosphere, hydrosphere, biosphere, cryosphere and lithosphere, represent a serious challenge to our planet's ecosystems and natural environments. Bioclimatology, hydrology, bio-hydrology and eco-physiology are important scientific research areas with wide application to environmental protection, forestry, agriculture and water management, and protection against natural hazards including droughts, floods, windstorms, weather extremes, and wild fires. Bioclimatology helps to better understand the causes and impacts of natural hazards and how to prevent them. Improved knowledge of natural hazards is a vital prerequisite for the implementation of integrated resource management. It provides a useful framework for combating current climate variability and for adapting to ongoing climate change.

This book presents research on the interactions between meteorological, climatological, hydrological and biological processes in the atmospheric and terrestrial environment. It highlights a spectrum of topics associated with climate change and weather extremes and their impact on different economic sectors. The contributing authors come from renowned scientific research institutions and universities and specialise in issues of climate change, soil-plant-atmosphere interactions, hydrologic cycle, ecosystems, biosphere, and natural hazards.

This book explores the challenges that confront leaders in government and industry when making decisions in the areas of environmental health and safety. Today, decision making demands transparency, robustness, and resiliency. However thoughtfully they are devised, decisions made by governments and enterprises can often trigger immediate, passionate public response. Expertise Under Scrutiny shows how leaders can establish organizational decision making processes that yield valid, workable choices even in fast-changing and uncertain conditions. The first part of the book examines the organizational decision making process, describing the often-contentious environment in which important environmental health and safety decisions are made, and received. The authors review the roles of actors and experts in the decision making process. The book goes on to address such topics as: * The roles of actors and experts in the decision making process * Ethics and analytics as drivers of good decisions * Why managing problems in safety, security, environment, and health Part II offers an outline for adopting a formal decision support structure, including the use of decision support tools. It includes a chapter devoted to ELECTRE (ELimination and Choice Expressing Reality), a multi-criteria decision analysis system. The book concludes with an insightful appraisal and analysis of the expertise, structure and resources needed for navigating well-supported, risk-informed decisions in our 21st Century world. Expertise Under Scrutiny benefits a broad audience of students, academics, researchers, and working professionals in management and related disciplines, especially in the field of environmental health and safety.

The Middle East region holds the world's largest oil and natural gas proven reserves. Several Middle Eastern States are major oil producers and consumers. Given price fluctuations and environmental concerns many countries have sought to diversify their energy mix. The Middle East is no exception. Gawdat Bahgat analyzes the geopolitical, economic and strategic forces behind this diversification in the Middle East. He highlights the main advantages and disadvantages of each source of energy.

Things have changed. In 1969 when the Convention for the Conservation of the Vicuna was drafted, in an attempt to save the vicuna from its tumbling decline towards extinction, both the science and the philosophy of wildlife conservation were radically different. It is thus a tribute to the prescience of those involved at the time that the rescue plan had, even through the harsh lens of hindsight, a d- tinctly Twenty First Century flavour. After all, it was predicated on the expectation that if vicuna could be saved, they would one day become a valued asset, generating revenue for the human communities that fostered their survival. Embodied in this aspiration are the main structures of modern biodiversity conservation - not only is it to be underpinned by science, but that science should be of both the natural and the social genres, woven into inter-disciplinarity, and thereby taking heed of e- nomics, governance, ownership and the like, alongside biology. In addition, it should include, as a major strut, the human dimension, taking account of the affected constituencies with their varied stakes in alternative outcomes. This c- temporary framework for thinking about biodiversity conservation is inseparable from such wider, and inherently political, notions as community-based conser- tion and ultimately sustainable use.

We must enhance the effectiveness ofland stewardship and management of the world's natural resources to meet a growing global population's need for conservation, sustainable development, and use of land, water, and other natural resources. Ecosystem-based, mul tiple-use land stewardship is necessary when considering the present and future uses ofland, water, and other natural resources on an operationally efficient scale. We need holistically planned and carefully implemented watershed management practices, projects, and pro grams to accommodate the increasing demand for commodities and amenities, clear water, open space, and uncluttered landscapes. An international conference in Tucson, Arizona, from March 13 to 16, 2000, examined these needs and increased people's awareness of the contributions that ecosystem-based, multiple-use watershed management can make to future land stewardship. The conference was sponsored by the School of Renewable Natural Resources, University of Arizona; the College of Agriculture, University of Arizona; the Rocky Mountain Research Station, USDA Forest Service; the Research Center for Conservation of Water Resources and Disaster Pre vention, National Chung-Hsing University, Taiwan; the Department of Forest Resources, University of Minnesota; the Center for Integrated Natural Resources and Agriculture Man agement, University of Minnesota; the Centro de Investigaciones Biologicas del Noreste, Mexico; the International Arid Lands Consortium; the USDA Natural Resources Conserva tion Service; the Bureau of Land Management of the Department of the Interior; the Salt River Project, Phoenix, Arizona; the Southern Arizona Chapter, Southwestern Section of the Society of American Foresters; and IUFRO Working Party 8. 04. 04, Erosion Control by Watershed Management."

Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.

Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.

Climate change, urban sprawl, abandonment of agriculture, intensification of forestry and agriculture, changes in energy generation and use, expansion of infrastructure networks, habitat destruction and degradation, and other drivers of change occur at increasing rates. They affect patterns and processes in forest landscapes, and modify ecosystem services derived from those ecosystems. Consequently, rapidly changing landscapes present many new challenges to scientists and managers. While it is not uncommon to encounter the terms "global change" and "landscape" together in the ecological literature, a global analyses of drivers of change in forest landscapes, and their ecological consequences have not been addressed adequately. That is the goal of this volume: an exploration of the state of knowledge of global changes in forested landscapes with emphasis on causes and effects, and challenges faced by researchers and land managers. Initial chapters identify and describe major agents of landscape change: climate, fire, and human activities. The next series of chapters address implications of changes on ecosystem services, biodiversity conservation and carbon flux. A chapter that describes methodologies of detecting and monitoring landscape changes is presented followed by chapter that highlights the many challenges forest landscape managers face amidst of global change. Finally, we present a summary and a synthesis of the main points presented in the book. Each chapter will contain the individual research experiences of chapter authors, augmented by review and synthesis of global scientific literature on relevant topics, as well as critical input from multiple peer reviewers.

This volume applies ecological principles and guidelines to understand past and current land use and land management; and more importantly, endeavors to promote more ecologically sound approaches to future land use and management decisions. The volume incorporates case studies from a wide variety of disciplines and perspectives. The case studies explore past and current land use decisions, on both public and private lands, and include practical approaches and tools for land-use decision-making. Perhaps the most important feature of the book is the linking of ecological theory and principle with applied land use decision-making - the theoretical and empirical are joined through concrete case studies of actual land use decision-making processes. In this volume, readers will find a statement of fundamental ecological principles that are relevant for land use planning and management, coupled with multiple in-depth explorations of the application of these principles in action. In addition, most case studies describe specific tools and approaches for incorporating endeavors to join fundamental ecological knowledge with cutting edge application in order to both educate and provide concrete guidance for decision-making. The intended audience is broad and multidisciplinary, from undergraduate and graduate level courses in environmental studies to professional land use planners. "Read this and Discover. Wisdom lies in these pages, a scarce and powerful attribute." from the Foreword by Richard Foreman.

This unrivalled reference book is the first in the new Springer-Praxis Earth System Science Series. Written by a team of global experts, this new book describes mankind s destruction of the Aral Sea. Dr Philip Micklin and team explain how spheres and events interact and reveal the social, psychological, political and economic consequences of the "Aral Sea Problem" together with some lessons of how to potentially rehabilitate portions of the sea.

International experts in the field have contributed to the work including Praxis author Dr. Zavialov, covering physical oceanography and also Dr. Vitaliy Bortnik, the leading expert on the hydrometeorology and hydrochemistry of the Aral at the end of the Soviet period. Other pioneering experts have contributed chapters covering climatology; archaeological and paleobotanical evidence for ascertaining the level variation history of the Aral Sea; landscape dynamics of the Amu Dar ya Delta owing to drying of the sea; use of radar altimetry to trace sea level changes and much more.

The book is structured into six core parts. The first part sets the scene and explains how the use of Aral basin water resources, primarily used for irrigation, have destroyed the Aral Sea. The team explains how spheres and events interact and the related problems. Part 2 examines the social consequences of the ecological catastrophe and the affect of the Aral Sea desiccation on cultural and economic conditions of near Aral region. Part 3 explores the scientific causes of the destruction using detailed analyses and data plus some of their own research spanning aquatic biology, terrestrial biology, hydrology, water management and biodiversity. They also share some of the latest archaeological discoveries and paleobotanical analysis to delineate past levels and characteristics of the Aral Sea. There is particular focus on modern remote sensing and GIS techniques and how they can monitor the Aral Sea and the environment. Part 4 discusses regional and international initiatives to mitigate human and ecological problems of the Aral Sea and the wider political and economic consequences. With thorough insight of the total environment cost, the final chapters of the book will provide lessons for the future. There are insightful case studies throughout.

Multidisciplinary by nature, all titles in our new reference book series will explore significant changes within the Earth s ecosystems and to some extent, will tackle ways to think about our changing environment. "

Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.

This volume offers a snapshot of the research that is ongoing in the area of value transfer. It provides relevant input for increasing the quality of cost-benefit analyses of projects with environmental and health impacts. The volume includes papers by some of the most influential authors in the area and covers the latest developments in the field.

One of the early set of reforms that South Africa embarked on after emerging from apartheid was in the water sector, following a remarkable, consultative process. The policy and legal reforms were comprehensive and covered almost all aspects of water management including revolutionary changes in defining and allocating rights to water, radical reforms in water management and supply institutions, the introduction of the protection of environmental flows, and major shifts in charging for water use and in the provision of free basic water. Over ten years of implementation of these policy and legislative changes mean that valu-able lessons have already been learned and useful experiences gained in the challenge of effective water resources management and water services provision in a middle income country.

This edited volume establishes a forum for international experts to explore cutting-edge questions associated with the land use and biomass production. Topics include 'do we have enough land, either primary or marginal, to accommodate future production of biomass?', 'how are farming decisions made in response to biomass incentives?', 'is the current bio-mass production socially, economically and environmentally sustainable?', and 'what are the main constraints currently limiting biofuel deployment?' The expansion of biomass production is often at the cost of reduced land availability for food production and losses of areas with ecological functions such as forests and wetlands. This process often involves complex interplay of physical dynamics and human systems that are driven by numerous geographic and socio-economic factors at different scales. Thus, the state-of-the-art research on the land use issues surrounding the biomass production and its environmental impacts is important for informed land management decision making. This book will be of great use to researchers in land use management and biomass-based renewable energy, as well as practitioners.

With the use of ecological models, managers and decision makers can make sure that the ecological systems affected by their decisions are accurately represented. Unfortunately, the most relevant ecological science and modeling techniques are often not used because managers are not familiar with them or find them inappropriate for their circumstances. The authors of this volume hope to close the gap between the state of the art in ecological modeling and the state of the practice in the use of models as decision-making tools. It will serve as a readable introduction to modeling for people involved in resource management and will also review specific applications of interest to more experienced modelers. The first chapters detail several successful uses of ecological models in resource management. There are then five pairs of chapters addressing important issues in ecological modeling, including barriers to the use of modeling in decision making, evolving approaches in the field, effective use of data, the toolkit approach to management, and the various scientific and technological investments required for productive modeling. Ecologists and other scientists will learn how best to focus their research for practical, real-world applications, and resource managers and other practitioners will learn the most appropriate methods of understanding dynamic processes and making projections about the implications of their decisions.

This book provides insight into the instances in which wildlife species can create problems. Some species trigger problems for human activities, but many others need humans to save them and to continue to exist. The text addresses issues faced by economists and politicians dealing with laws involving actions undertaken to resolve the problems of the interaction between humans and wildlife. Here, the words 'problematic species' are used in their broadest sense, as may be appreciated in the short introductions to the various sections. At times, the authors discuss special cases while always extending the discussion into a more general and broad vision. At others, they present real cutting-edge analysis of ecological topics and issues. The book will be of interest to biologists, ecologists and wildlife managers involved in research on wildlife, parks, and environmental management, as well as to government departments and agencies, NGOs and conservation wildlife organizations. Even those in contact with nature, such as hunters, herders, and farmers, will be able to find a great deal of important information. Specific case studies are selected from among the most significant and prevalent cases throughout the world. A total of 26 papers have been selected for this book, written by zoologists, biologists and ecologists. Many have an interdisciplinary approach, with contributions by economists, criminologists, technical specialists, and engineers.

This book comes after several decades of outstanding and successful research that has helped ameliorate some of the most important and controversial fisheries issues in the world a" those associated with the unwanted wastage of fish from by-catch and discarding.

The 8 chapters encompass contributions from 27 of the worlda (TM)s leading experts in by-catch reduction. They take the reader through most aspects of the field at a variety of scales and viewpoints. They examine the methodologies used to develop by-catch reduction techniques and provide new avenues for assisting and broadening such work. Case studies are provided that encompass most of the worlda (TM)s fishing techniques and regions.

Solutions developed for the most problematic fishing methods in terms of by-catch, selectivity and habitat damage are examined in significant detail in addition to ways to reduce the by-catch of charismatic species like marine mammals and sea-birds. By-catch reduction in less infamous fishing methods is also examined with chapters on recreational fishing and trapping. The book shows how the lessons learned in reducing by-catch can be applied to ameliorate emerging, broader issues concerning the impacts of fishing on entire ecosystems. Finally, the book examines the most vital phase of by-catch reduction work - its uptake and extension into fishing practices.

This book will prove an invaluable tool for any fisheries professional or lay person interested in by-catch reduction or, indeed, anyone trying to resolve a particular by-catch problem in their fishery.

What drives developed countries' high rates of energy and resource consumption? How important are individual efforts versus technological or social innovations for environmental sustainability?A multidisciplinary study combining social science, energy analysis, and risk communication, this work occupies a unique niche in the literature. Few treatments of energy and the environment approach the problem through the larger social science framework of sustainable consumption, while sociological studies of consumption eschew quantitative modelling. This book incorporates both, using theories, research, and computer-aided interviews to illustrate the range and relative effectiveness of interventions that support sustainable energy consumption.

In recent years EU policy towards the 'landscape' has become better defined, at the same time as the notion of 'landscape' itself remains elusive. The need for indicators to evaluate and monitor the effects of landscape policies and plans is urgent. What is more, landscape is one of the components considered in environmental reporting, but unlike air, soil, or water, it is difficult to measure using quantitative methods.

With studies on landscape indicators being as rare as they are, this volume is an attempt to fill the gap, dealing as it does with the definition and use of specific indicators for landscape assessment and monitoring. To tackle the diverse dimensions of the landscape (whose complexity is well known), the subject is approached by a multidisciplinary team of experts in landscape ecology, landscape history, landscape perception, regional planning, strategic environmental assessment and environmental impact assessment procedures, and multi-criteria assessment methods. Individual chapters include comparative assessments of studies conducted thus far in the EU, as well as detailed analyses of ecological, historical, perceptive, land-use, and economic ways of looking at landscape.

As well as providing a rich source of references for researchers studying the landscape from a variety of perspectives, the book will be required reading for European officials involved at any level in planning or assessing the landscape or environment.

In this global wake-up call, nuclear physicist Jeff Eerkens explores remedies for the impending energy crisis, when oil and natural gas are depleted. The Nuclear Imperative demonstrates that solar, wind, and biomass power are incapable of supplying the enormous quantities of electricity and heat needed for manufacturing portable synthetic fuels to replace our current use of fossil fuels. It offers a fresh look at uranium-produced energy as the optimal affordable solution.

Research into microwave radiation from the Eartha (TM)s surface in the presence of vegetation canopies, as well as the development of algorithms for retrieval of soil and vegetation parameters from microwave radiometric measurements, have been actively conducted for the last thirty years by many scientific groups and organizations all over the world. The capability of the microwave radiometric method to determine soil moisture and vegetation biometric indices was revealed a quarter of a century ago by the author and many of his colleagues. In fact, soil moisture and vegetation covers play a key role in the hydrological cycle and in water and energy transfer on the border of land surface and atmosphere through evaporation and transpiration. Accomplishment of large international projects that include global monitoring of the hydrological state of land surface (EOS Aqua, SMOS, Hydros, and others) shows that microwave radiometry of soil and vegetation more and more has become an instrument of practical application and operational use. In this respect, a systematic account of questions concerning the microwave radiometry of the Eartha (TM)s surface in the presence of vegetation canopies seems to be useful and is the main objective of the book.

This book explores the forestry sector and its context, investigating the management of forest resources in Indonesia. It covers topics including forest fires, deforestation, water pollution, depletion of biodiversity, climate change and environmental damages. The book adopts a political economy approach, elaborating on the role of direct actors such as the central government, private companies and local governments, and the role of indirect actors. In addition, readers will discover anthropological and sociological perspectives through engagement with local communities such as the Kutai, Banjar and Rejang ethnic groups, Chinese trading communities, NGOs and Academics. Featuring interviews with 91 informants and participatory observations, the text draws on secondary literature to provide a comprehensive overview of the subject. This work is illustrated with figures, tables and maps and will be of particular interest to students and researchers of forest policies. It makes a valuable contribution to forest sciences and will also be useful to those in non-government organizations, politicians and business men with an interest in forest resources management, or a deeper interest in Indonesia.

This book investigates how environmental qualities can be managed through social capacity development in developing countries. To this end, the book proposes a concept of social capacity assessment (SCA) and presents empirical tools for the SCA which can be used for the analysis in developing countries. This book also presents applications of the SCA for other problems under scrutiny in developing countries, including poverty reduction, infrastructure management and protection of endangered species.